Re: Lunar Lander help

Check for stuck switches. Not sure about Lunar Lander, but stuck
switches have caused weird stuff on other games (stuck serve switch on
Breakout causes blocks not to reset, stuck player 1 start on Blasteroids
makes game appear dead, stuck start button on Speed Freak causes power
up into self test, etc). Perhaps stuck/shorted slam switch on coin door
causing constant board reset??

On some games you can unplug the control panel and/or coin door. If that
option is available you might try it.

Joe Magiera wrote:
>
> Working on a Lunar Lander. I’ve tested the monitor with both power and
> signal applied from an outside source and the monitor works fine. I
> tested the PCB in another cabinet and it works fine. I checked the
> voltages from the Regulator/Audio, and they are fine. But when I test
> the whole game together, the light on the monitor deflection board
> stays on (and I get no video).
>
> So I then unplugged the signal from the PCB to the monitor and used
> the signal from an external source (and used the power from the game
> and transformer) and the deflection board light went out and the
> picture came up fine. To me that also verifies that the transformer is
> also working fine.
>
> So with that in mind, all parts (transformer, audio/reg, PCB, monitor)
> all working, the only thing that could be bad is the portion of the
> wiring harness that carries the signal from the PCB to the monitor.
> Any one else have any other ideas?
>
> Joe
>
> joemagiera@ameritech.net
>
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Received on Sun Jan 14 15:17:37 2007